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25225033 = 157160669
BaseRepresentation
bin110000000111…
…0011101001001
31202110120020111
41200032131021
522424200113
62300354321
7424260241
oct140163511
952416214
1025225033
1113269a39
1285459a1
1352c2772
1434c8b21
15233413d
hex180e749

25225033 has 4 divisors (see below), whose sum is σ = 25385860. Its totient is φ = 25064208.

The previous prime is 25225021. The next prime is 25225049. The reversal of 25225033 is 33052252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8838729 + 16386304 = 2973^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 25225033 - 25 = 25225001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25224995 and 25225013.

It is not an unprimeable number, because it can be changed into a prime (25225073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80178 + ... + 80491.

It is an arithmetic number, because the mean of its divisors is an integer number (6346465).

Almost surely, 225225033 is an apocalyptic number.

It is an amenable number.

25225033 is a deficient number, since it is larger than the sum of its proper divisors (160827).

25225033 is a wasteful number, since it uses less digits than its factorization.

25225033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160826.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 25225033 is about 5022.4528867875. The cubic root of 25225033 is about 293.2764884970.

Adding to 25225033 its reverse (33052252), we get a palindrome (58277285).

The spelling of 25225033 in words is "twenty-five million, two hundred twenty-five thousand, thirty-three".

Divisors: 1 157 160669 25225033